A double-sided razor is configured with connection mechanisms on opposite sides to engage with attachable and replaceable razor blades. In typical implementations, the razor may have a short side and a long side that respectively engage with relatively shorter and longer-sized razor blades. Users can use different-sized razor blades for different shaving scenarios. For example, the longer-sized razor blade may be used to shave the face, legs, chest, etc., whereas the short-side razor blade may be used to shave the user's upper lip, pubic and genital region, etc. The short-side razor blade may help the user shave more precisely and cautiously to prevent an unnecessary cut. A bottom side of the double-sided razor can have a lever that rotatably pivots from one side of the razor to the other so a guard can block the unused blades from cutting a user.